Nassau County and Oyster Bay Town property records for 62 addresses on Duffy Ave, Hicksville, NY · Last verified October 2026
| Properties | 62 |
|---|---|
| Median Sale Price | $2,440,000 |
| Deeds and Mortgages on File | 73 |
| Median Price per Sqft | $270 |
| Owner Occupied | 63% |
| Median Annual Tax Bill | $12,127 |
| Median Year Built | 1951 |
| Median Ownership Tenure | 15 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1 Duffy Ave |
0.419 acres | Assessor Updated Jul 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4 Duffy Ave |
56,000 sqft 1.28 acres | $6,000,000 Nov 2023 | $131,140 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 Duffy Ave |
7,792 sqft built 1906 · 0.214 acres | $1,050,000 Dec 2017 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
55 Duffy Ave |
$7,572 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
81 Duffy Ave |
1 ba · 1,030 sqft built 1948 · 0.338 acres | $485,000 Mar 2010 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
83 Duffy Ave |
2 ba · 1,704 sqft built 1948 · 0.291 acres | $156,400 Jul 1999 | $11,103 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
85 Duffy Ave |
2 ba · 1,214 sqft built 1948 · 0.646 acres | $350,000 May 2003 | $12,127 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
89 Duffy Ave |
2 ba · 2,296 sqft built 1989 · 0.189 acres | $12,494 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
91 Duffy Ave |
2 ba · 1,877 sqft built 1948 · 0.311 acres | $410,000 Oct 2017 | $12,915 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
93 Duffy Ave |
1 ba · 1,093 sqft built 1948 · 0.299 acres | $9,214 2025 | Assessor + 1 Document Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
95 Duffy Ave |
2 ba · 2,164 sqft built 1948 · 0.299 acres | $325,000 Oct 2002 | $11,672 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
97 Duffy Ave |
3 ba · 1,958 sqft built 1948 · 0.303 acres | $200,000 Jun 1998 | $12,597 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
99 Duffy Ave |
1 ba · 1,030 sqft built 1948 · 0.299 acres | $550,000 Dec 2021 | $9,942 2025 | Assessor + 2 Documents Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
100, #2 Duffy Ave |
13,544 sqft built 1984 · 3.6 acres | $1,879,396 2023 | Assessor Updated Jul 2023 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
100, Unit 1 Duffy Ave |
31,668 sqft built 1984 · 0.992 acres | $44,200,000 May 2016 | $225,914 2023 | Assessor Updated Jul 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
101 Duffy Ave |
4 bd · 3 ba · 1,224 sqft built 1948 · 0.303 acres | $335,000 Aug 2014 | $10,489 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
102 Duffy Ave |
103,059 sqft built 1975 · 1.91 acres | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
103 Duffy Ave |
2 ba · 1,456 sqft built 1948 · 0.303 acres | — Jun 2011 | $10,966 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
105 Duffy Ave |
1 ba · 1,030 sqft built 1948 · 0.303 acres | — Jun 2011 | $8,737 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
107 Duffy Ave |
1 ba · 1,030 sqft built 1948 · 0.303 acres | $115,000 Jul 1997 | $9,260 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
109 Duffy Ave |
1 ba · 1,030 sqft built 1948 · 0.303 acres | $190,000 Jul 2002 | $9,419 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
110 Duffy Ave |
30,000 sqft built 1950 · 0.794 acres | $491,333 Jan 2013 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
111 Duffy Ave |
2 ba · 1,472 sqft built 1948 · 0.297 acres | — Jun 2011 | $10,921 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
112 Duffy Ave |
7,559 sqft built 1963 · 0.695 acres | $1,800,000 Jun 2007 | $40,128 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
116 Duffy Ave |
1 ba · 1,336 sqft built 1900 · 0.18 acres | — Jun 2011 | $9,146 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
124, #126 Duffy Ave |
9,090 sqft built 1956 · 0.675 acres | $38,044 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
128-132 Duffy Ave |
10,684 sqft built 1917 · 0.703 acres | — Nov 2010 | $42,188 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
136 Duffy Ave |
1 ba · 1,420 sqft built 1918 · 0.244 acres | — Dec 2012 | $10,033 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
140 Duffy Ave |
1 ba · 1,464 sqft built 1922 · 0.278 acres | — Jan 2013 | $10,079 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
147 Duffy Ave |
2.5 ba · 1,286 sqft built 1931 · 0.171 acres | $210,000 Jan 2003 | $10,807 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
148, #152 Duffy Ave |
10,483 sqft built 1957 · 1.2 acres | — Jun 2011 | $48,744 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
156 Duffy Ave |
15,470 sqft built 1974 · 0.677 acres | $950,000 Nov 2001 | $52,248 2025 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
190 Duffy Ave |
9,024 sqft built 1959 · 0.446 acres | $2,440,000 May 2022 | $57,793 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
202 Duffy Ave |
25,200 sqft built 1954 · 2.81 acres | $106,530 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
205 Duffy Ave |
4.5 ba · 4,826 sqft built 1920 · 2.68 acres | $447,500 Aug 1997 | $25,687 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
221 Duffy Ave |
2 ba · 1,356 sqft built 1951 · 0.156 acres | $101,000 Aug 2003 | $10,150 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
223 Duffy Ave |
2 ba · 1,346 sqft built 1951 · 0.137 acres | $10,219 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
227 Duffy Ave |
3 bd · 2 ba · 1,260 sqft built 1951 · 0.144 acres | $360,000 Apr 2016 | $10,193 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
229 Duffy Ave |
3 bd · 2 ba · 1,680 sqft built 1951 · 0.151 acres | $340,000 Oct 2014 | $10,219 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
230 Duffy Ave |
134,424 sqft built 1952 · 6.68 acres | $6,224,240 Dec 2000 | Assessor + 7 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
233 Duffy Ave |
2 ba · 1,470 sqft built 1951 · 0.142 acres | $475,000 Jan 2020 | $11,035 2025 | Assessor + 2 Documents Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
235 Duffy Ave |
2 ba · 1,470 sqft built 1951 · 0.142 acres | $11,029 2026 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
239 Duffy Ave |
3 ba · 1,533 sqft built 1951 · 0.149 acres | $474,000 May 2018 | $11,430 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
241 Duffy Ave |
2 ba · 2,480 sqft built 1951 · 0.137 acres | — Sep 2010 | $6,372 2025 | Assessor Updated Jun 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
245 Duffy Ave |
2 ba · 1,296 sqft built 1951 · 0.167 acres | $460,000 Dec 2016 | $14,026 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
250 Duffy Ave |
96,186 sqft built 1952 · 5.93 acres | $2,600,000 Sep 1996 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
260, #270 Duffy Ave |
131,877 sqft built 1950 · 8.41 acres | $8,750,000 Dec 2000 | Assessor + 7 Documents Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
280-280 Duffy Ave |
48,762 sqft built 1963 · 2.63 acres | $2,559,199 Feb 1997 | Assessor + 5 Documents Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
290 Duffy Ave |
55,206 sqft built 1962 · 2.97 acres | $3,502,759 Dec 2000 | Assessor + 7 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
292 Duffy Ave |
6,600 sqft built 1986 · 0.929 acres | $33,478 2025 | Assessor Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
295 Duffy Ave |
7,200 sqft built 1954 · 1.01 acres | $288,000 Jan 2001 | $27,902 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
299 Duffy Ave |
24,300 sqft built 2000 · 1.14 acres | $3,250,000 May 2019 | $138,547 2025 | Assessor + 2 Documents Updated Jun 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
300 Duffy Ave |
192,453 sqft built 1998 · 10.5 acres | $13,000,000 Feb 2014 | Assessor + 4 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
325 Duffy Ave |
100,496 sqft built 1959 · 6.78 acres | $3,398,533 Dec 2000 | Assessor + 7 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
344 Duffy Ave |
195,610 sqft built 2019 · 8.99 acres | $7,450,000 Jan 2021 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
351 Duffy Ave |
2,852 sqft built 1987 · 0.354 acres | $330,000 Dec 1999 | $19,417 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
359 Duffy Ave |
19,120 sqft built 1946 · 1.86 acres | $128,489 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
360 Duffy Ave |
3,521 sqft built 1957 · 0.188 acres | $740,000 Sep 2023 | $26,666 2025 | Assessor + 4 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
367 Duffy Ave |
1,690 sqft built 1943 · 0.319 acres | $39,250 2025 | Assessor + 2 Documents Updated Jun 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
397 Duffy Ave |
23,730 sqft built 1950 · 1.91 acres | $9,225 2026 | Assessor + 1 Document Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
400 Duffy Ave |
21,600 sqft built 1952 · 1.15 acres | $1,625,000 Sep 2007 | $82,185 2025 | Assessor + 1 Document Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
429 Duffy Ave |
51,505 sqft built 1964 · 1.96 acres | — Jul 2015 | $173,623 2025 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |